2 Michael Jackson

In Moonwalker, Michael Jackson played himself. Not a version of himself. He actually played himself, but with all the panache of a regional Michael Jackson lookalike competition bronze medal winner. Let us call this the Spice World effect.
Pictured: Moonwalker (1988)

3 Prince

Prince can compose, perform, produce, sing and dance like nobody else on earth.
He can also act like nobody else on earth. Because everyone else on earth is better at it than him.
Pictured: Purple Rain (1984)

5 50 Cent

Like Eminem, 50 Cent essentially played himself in Get Rich or Die Tryin’. Unlike Eminem, he then made lots of
direct-to-DVD filler that people only watch out of self-loathing.
Pictured: Get Rich or Die Tryin' (2005)

6 Britney Spears

It’s easy to pick on Britney Spears
for starring in Crossroads, but that’s because watching Crossroads was like performing dental surgery on yourself with a tinfoil drill. Her place here is well deserved.
Pictured: Crossroads (2002)

7 Pete Doherty

Doherty’s debut acting turn alongside Charlotte Gainsbourg in Confession of a Child of the Century was labelled as
“shambling amateurism” by the Guardian’s Catherine Shoard. And that was her being nice.
Pictured: Confession of a Child of the Century (2012)

8 Rihanna

Admittedly Rihanna
wasn’t given an awful lot to do in Battleship, but she still failed hopelessly at it. Your mum, given the chance, could grunt at a Transformer more convincingly.
Pictured: Battleship (2012)